For faster navigation, this Iframe is preloading the Wikiwand page for 纤连蛋白.

纤连蛋白

Fibronectin 1
纤连蛋白1
PDB rendering based on 1e88.
有效结构
PDB 直系同源检索:PDBe, RCSB
标识
代号 FN1; CIG; ED-B; FINC; FN; FNZ; GFND; GFND2; LETS; MSF
扩展标识 遗传学135600 鼠基因95566 同源基因1533 ChEMBL: 3810 GeneCards: FN1 Gene
RNA表达模式
更多表达数据
直系同源体
物种 人类 小鼠
Entrez 2335 14268
Ensembl ENSG00000115414 ENSMUSG00000026193
UniProt P02751 P11276
mRNA序列 NM_002026 NM_001276408
蛋白序列 NP_002017 NP_001263337
基因位置 Chr 2:
216.23 – 216.3 Mb
Chr 1:
71.59 – 71.65 Mb
PubMed查询 [1] [2]
纤连蛋白的模组结构及其结合结构域

纤网蛋白是高分子量(~440kDa)的糖蛋白细胞外基质,和细胞膜内称为整合素受体蛋白结合[1]。和整合素类似,纤连蛋白也会和许多细胞外基质的成分结合,像胶原蛋白纤维蛋白硫酸类肝素英语heparan sulfate蛋白聚糖(也就是多配体聚糖英语syndecans)。

纤连蛋白可促进细胞粘连、增殖,还可以修复受损细胞,刺激细胞分泌各种功能蛋白。纤连蛋白能够调节细胞与细胞间质之间的动态平衡,改善细胞内外微循环,保证内外物质运输。纤连蛋白与淋巴细胞表面接合,刺激淋巴细胞产生免疫抗体,改善机体的免疫系统,阻碍机体衰老。在机体细胞自然凋亡过程中,纤连蛋白利用其能够 迁移细胞的生物学效应,调节凋亡细胞与新生细胞的平衡关系。

纤连蛋白在伤口愈合过程中起到至关重要的作用。当伤口出现后,FN会出现在伤口血浆中,起到止血、保护损伤组织的作用。在伤口修复过程中,FN调动吞噬细胞吞噬异物,促进成纤维细胞分泌蛋白酶,分解蛋白杂质。在损伤组织生长过程中,FN提高整合素的表达,从而加快组织修复。

纤连蛋白是胚胎发育过程中必不可少的物质,可以指导胚胎发育过程中的细胞黏附和迁移。在哺乳动物的发育中,FN的缺失会造成中胚层、神经管和血管的缺陷。在两栖动物的发育中,FN的缺失也会导致中胚层生长的缺陷。

正常人的唾液中含有纤连蛋白,它们可以清除口腔与咽喉中的致病细菌,防止出现口腔与咽喉病变。


参考资料

  1. ^ Pankov R, Yamada KM. Fibronectin at a glance. Journal of Cell Science. October 2002, 115 (Pt 20): 3861–3. PMID 12244123. doi:10.1242/jcs.00059. 
{{bottomLinkPreText}} {{bottomLinkText}}
纤连蛋白
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?